1. Washington State Ocean Energy Conference
- Offshore Wind Overview
by: William L. Hurley, Jr. P.E.
November 9, 2011
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2. Presentation Topics
1. Introduction
2. Overview of a Wind Farm Installation Project
3. Puget Sound Infrastructure
4. Various Floating Wind Turbine Concepts
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3. The Glosten Associates
Glosten has a staff of 70 Associates,
consulting in many marine industry sectors:
• Oceanographic Research
• Aerospace and Special Projects
• Infrastructure
• Energy, Oil and Gas
• Commercial Shipping
• Passenger Transportation
• Renewable Energy (Offshore Wind)
• Government Projects in Commercial Yards

4. Glosten Position in Industry
Floating Tension-Leg
Turbine Platform
We have advanced the
technology of our TLTP
and are now promoting
world wide.
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7. Washington State Assets and Infrastructure
1. History of Innovative, Major Offshore and
Marine Construction Projects
• Sealifts in 1970’s and 80’s supported Prudhoe Bay
Development and Alaska Pipeline Construction
• Floating Bridges (new 520 bridge underway)
• Tacoma Narrows Bridge – Cassion Installation
2. Major Marine Construction Firms with
Equipment Based in Puget Sound
• Manson Construction
• Kiewit General
• Cable Laying
3. Many Shipyards and Fabricators with Large
Steel Through-put Capability, Supported by
7 Strong Engineering Firms

8. Washington State Assets and Infrastructure
4. Oceanographic Research Support
• U/W School of Oceanography and R/V Thompson
• U/W Applied Physics Lab (APL)
5. Materials Transportation Infrastructure Strong
• Tug and Barge Companies (Foss and Crowley plus many
more)
• Rail Access to Waterfront Loading (Boeing Mukilteo
example)
6. Fabrication, Assembly and Staging Areas
Plentiful (no water depth or air draft limitations)
• Grays Harbor
• Port Angeles
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9. Floating Foundation Stabilizing Methods

10. Statoil HyWind Spar

11. WindFloat Semisub, Sway Spar, Glosten
PelaStar

12. Blue H Tension Leg Platform
Phase III

13. Windsea and Nautica Windpower

14. NOVA (Novel Vertical Axis)

15. Development Stages
Research to Prove Feasibility
• TRL 2 = concept development
• TRL 3 = simulation
Technology Development
• TRL 4 = basic model testing
• TRL 5 = complete model test program
Technology Demonstration
• TRL 6 = intermediate-scale prototype
deployed offshore
System Commissioning
• TRL 7 = full-scale prototype deployed
offshore (“Relevant Environment”)
• TRL 8 = full-scale prototype deployed
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offshore (“Expected Environment”)

16. Closing Remarks
Floating Offshore Wind is
Viable
• Within 5 years we will see 4 full-
scale demonstration projects
• Cost of Energy will be driven down
with technology developments
• There will be a few platforms with
acceptable technology, each with
advantages that suit different
sites/turbines
European & Asian Initiatives
will Develop Technology
When Washington State is ready
for Offshore Wind, Floating
16 Technology will be ready to apply